53 	size_t len;  in kstrdup()  local
59 	len = strlen(s) + 1;  in kstrdup()
60 	buf = kmalloc_track_caller(len, gfp);  in kstrdup()
62 		memcpy(buf, s, len);  in kstrdup()
98 	size_t len;  in kstrndup()  local
104 	len = strnlen(s, max);  in kstrndup()
105 	buf = kmalloc_track_caller(len+1, gfp);  in kstrndup()
107 		memcpy(buf, s, len);  in kstrndup()
108 		buf[len] = '\0';  in kstrndup()
123 void *kmemdup(const void *src, size_t len, gfp_t gfp)  in kmemdup()  argument
127 	p = kmalloc_track_caller(len, gfp);  in kmemdup()
129 		memcpy(p, src, len);  in kmemdup()
143 char *kmemdup_nul(const char *s, size_t len, gfp_t gfp)  in kmemdup_nul()  argument
150 	buf = kmalloc_track_caller(len + 1, gfp);  in kmemdup_nul()
152 		memcpy(buf, s, len);  in kmemdup_nul()
153 		buf[len] = '\0';  in kmemdup_nul()
168 void *memdup_user(const void __user *src, size_t len)  in memdup_user()  argument
172 	p = kmalloc_track_caller(len, GFP_USER | __GFP_NOWARN);  in memdup_user()
176 	if (copy_from_user(p, src, len)) {  in memdup_user()
194 void *vmemdup_user(const void __user *src, size_t len)  in vmemdup_user()  argument
198 	p = kvmalloc(len, GFP_USER);  in vmemdup_user()
202 	if (copy_from_user(p, src, len)) {  in vmemdup_user()
250 void *memdup_user_nul(const void __user *src, size_t len)  in memdup_user_nul()  argument
259 	p = kmalloc_track_caller(len + 1, GFP_KERNEL);  in memdup_user_nul()
263 	if (copy_from_user(p, src, len)) {  in memdup_user_nul()
267 	p[len] = '\0';  in memdup_user_nul()
484 	unsigned long len, unsigned long prot,  in vm_mmap_pgoff()  argument
496 		ret = do_mmap_pgoff(file, addr, len, prot, flag, pgoff,  in vm_mmap_pgoff()
507 	unsigned long len, unsigned long prot,  in vm_mmap()  argument
510 	if (unlikely(offset + PAGE_ALIGN(len) < offset))  in vm_mmap()
515 	return vm_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);  in vm_mmap()
846 	unsigned int len;  in get_cmdline()  local
861 	len = arg_end - arg_start;  in get_cmdline()
863 	if (len > buflen)  in get_cmdline()
864 		len = buflen;  in get_cmdline()
866 	res = access_process_vm(task, arg_start, buffer, len, FOLL_FORCE);  in get_cmdline()
872 	if (res > 0 && buffer[res-1] != '\0' && len < buflen) {  in get_cmdline()
873 		len = strnlen(buffer, res);  in get_cmdline()
874 		if (len < res) {  in get_cmdline()
875 			res = len;  in get_cmdline()
877 			len = env_end - env_start;  in get_cmdline()
878 			if (len > buflen - res)  in get_cmdline()
879 				len = buflen - res;  in get_cmdline()
881 						 buffer+res, len,  in get_cmdline()